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CHAPTER 3
Information Systems: Ethics, Privacy, and Security
CHAPTER OUTLINE
3.1 Ethical Issues 3.2 Threats to Information Security 3.3 Protecting Information Resources
LEARNING OBJECTIVES
n Describe the major ethical issues related to information technology and identify situations in which they occur.
n Describe the many threats to information security.
n Understand the various defense mechanisms used to protect information systems.
n Explain IT auditing and planning for disaster recovery.
TJX: The Worst Data Breach Ever?
Ethical Issues
n Ethics n Code of Ethics
Fundamental Tenets of Ethics
n Responsibility n Accountability n Liability
Unethical vs. Illegal
What is unethical is not necessarily illegal. Ethics scenarios
The Four Categories of Ethical Issues
n Privacy Issues n Accuracy Issues n Property Issues n Accessibility Issues
Privacy Issues
How much privacy do we have left?
Privacy
n Privacy. The right to be left alone and to be free of unreasonable personal intrusions.
n Court decisions have followed two rules: (1) The right of privacy is not absolute.
Your privacy must be balanced against the needs of society.
(2) The public’s right to know is superior to the individual’s right of privacy.
Threats to Privacy
n Data aggregators, digital dossiers, and profiling
n Electronic Surveillance n Personal Information in Databases n Information on Internet Bulletin Boards,
Newsgroups, and Social Networking Sites
Data Aggregators, Digital Dossiers, and Profiling
Electronic Surveillance
Electronic Surveillance
n See "The State of Surveillance" article in BusinessWeek
n See the surveillance slideshow n See additional surveillance slides n And you think you have privacy? (video) n Sense-through-the-Wall
Personal Information in Databases
n Banks n Utility companies n Government agencies n Credit reporting agencies
Information on Internet Bulletin Boards, Newsgroups, and Social Networking Sites
Social Networking Sites Can Cause You Problems Anyone can post derogatory information about
you anonymously. (See this Washington Post article.) You can also hurt yourself, as this article
shows.
What Can You Do?
First, be careful what information you post on social networking sites.
Second, a company, ReputationDefender, says
it can remove derogatory information from the Web.
Protecting Privacy
n Privacy Codes and Policies n Opt-out Model n Opt-in Model
3.2 Threats to Information Security
Factors Increasing the Threats to Information Security n Today’s interconnected, interdependent,
wirelessly-networked business environment n Government legislation n Smaller, faster, cheaper computers and
storage devices n Decreasing skills necessary to be a computer
hacker
Factors Increasing the Threats to Information Security (continued) n International organized crime turning to
cybercrime n Downstream liability n Increased employee use of unmanaged
devices n Lack of management support
A Look at Unmanaged Devices
Wi-Fi at McDonalds
Wi-Fi at Starbucks
Hotel Business Center
Key Information Security Terms
n Threat n Exposure n Vulnerability n Risk n Information system controls
Security Threats (Figure 3.1)
Categories of Threats to Information Systems
n Unintentional acts n Natural disasters n Technical failures n Management failures n Deliberate acts (from Whitman and Mattord, 2003) Example of a threat (video)
Unintentional Acts
n Human errors n Deviations in quality of service by service
providers (e.g., utilities) n Environmental hazards (e.g., dirt, dust,
humidity)
Human Errors
n Tailgating n Shoulder surfing n Carelessness with laptops and portable
computing devices n Opening questionable e-mails n Careless Internet surfing n Poor password selection and use n And more
Anti-Tailgating Door
Shoulder Surfing
Most Dangerous Employees
Human resources and MIS
Remember, these employees hold ALL the information
Social Engineering
n 60 Minutes Interview with Kevin Mitnick, the “King of Social Engineering”
n Kevin Mitnick served several years in a federal prison. Upon his release, he opened his own consulting firm, advising companies on how to deter people like him, n See his company here
Natural Disasters
Deliberate Acts
n Espionage or trespass n Information extortion n Sabotage or vandalism n Theft of equipment or information
n For example, dumpster diving
Deliberate Acts (continued)
n Identity theft video
n Compromises to intellectual property
Deliberate Acts (continued)
n Software attacks n Virus n Worm
n 1988: first widespread worm, created by Robert T. Morris, Jr.
n (see the rapid spread of the Slammer worm) n Trojan horse n Logic Bomb
n Software attacks (continued) n Phishing attacks
n Phishing slideshow n Phishing quiz n Phishing example n Phishing example
n Distributed denial-of-service attacks n See botnet demonstration
Deliberate Acts (continued)
Deliberate Acts (continued)
n Software attacks (continued)
Can you be Phished?
How to Detect a Phish E-mail
Is the email really from eBay, or PayPal, or a bank? As Spammers get better, their emails look
more genuine. How do you tell if it’s a scam and phishing for personal information? Here’s how ...
Is the email really from eBay, or PayPal, or a bank?
As an example, here is what the email said: n Return-path: <[email protected]> n From: "PayPal"<[email protected]> n Subject: You have 1 new Security Message Alert !
Note that they even give advice in the right column about security
Example Continued – bottom of the email
How to see what is happening View Source n In Outlook, right click on email, click ‘view source’ n In GroupWise, open email and click on the Message Source tab n In Mozilla Thunderbird, click on View, and Source. n Below is the part of the text that makes the email look official –
the images came from the PayPal website.
View Source – The Real Link
n In the body it said, “If you are traveling, “Travelling Confirmation Here”
n Here is where you are really being sent n href=3D
ftp://futangiu:[email protected]/index.htm n Notice that the link is not only not PayPal, it is an
IP address, 2 giveaways of a fraudulent link.
Another Example – Amazon
View Source
Deliberate Acts (continued)
n Alien Software n Spyware (see video) n Spamware n Cookies
n Cookie demo
Deliberate Acts (continued)
n Supervisory control and data acquisition (SCADA) attacks
Wireless sensor
What if a SCADA attack were successful?
Northeastern U.S. power outage in 2003
Results of the power outage in NYC
More results of power outage in NYC
A Successful (Experimental) SCADA Attack
Video of an experimental SCADA attack that was successful
3.3 Protecting Information Resources
Risk!
There is always risk!
And then there is real risk!
Risk Management
n Risk n Risk management n Risk analysis n Risk mitigation
Risk Mitigation Strategies
n Risk Acceptance n Risk limitation n Risk transference
Risk Optimization
Controls
n Physical controls n Access controls n Communications (network) controls n Application controls
Where Defense Mechanisms (Controls) Are Located
Access Controls
n Authentication n Something the user is (biometrics)
n Video on biometrics n The latest biometric: gait recognition n The Raytheon Personal Identification Device
n Something the user has n Something the user does n Something the user knows
n passwords n passphrases
Access Controls (continued)
n Authorization n Privilege n Least privilege
Communication or Network Controls
n Firewalls n Anti-malware systems
n Whitelisting and Blacklisting n Intrusion detection systems n Encryption
Basic Home Firewall (top) and Corporate Firewall (bottom)
How Public Key Encryption Works
How Digital Certificates Work
Communication or Network Controls (continued)
n Virtual private networking n Secure Socket Layer (now transport layer
security) n Vulnerability management systems n Employee monitoring systems
Virtual Private Network and Tunneling
Popular Vulnerability Management Systems
Popular Employee Monitoring Systems
Employee Monitoring System
Business Continuity Planning, Backup, and Recovery
n Hot Site n Warm Site n Cold Site
Information Systems Auditing
n Types of Auditors and Audits n Internal n External
IS Auditing Procedure
n Auditing around the computer n Auditing through the computer n Auditing with the computer
Chapter Closing Case
